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path: root/src/runtime/signal2_unix.go
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* runtime: for c-archive/c-shared, install signal handlers synchronouslyIan Lance Taylor2016-01-091-0/+14
| | | | | | | | | | | | | | | | The previous behaviour of installing the signal handlers in a separate thread meant that Go initialization raced with non-Go initialization if the non-Go initialization also wanted to install signal handlers. Make installing signal handlers synchronous so that the process-wide behavior is predictable. Update #9896. Change-Id: Ice24299877ec46f8518b072a381932d273096a32 Reviewed-on: https://go-review.googlesource.com/18150 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
* runtime: add nowritebarrierrec to funcs called at signal timeIan Lance Taylor2016-01-081-0/+2
| | | | | | | | | | Also nosplit where needed. Change-Id: I1e3f6f8f76df9ee7e87ed1b8560cef145928314c Reviewed-on: https://go-review.googlesource.com/18395 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
* runtime: adjust gsignal stack to current signal stackIan Lance Taylor2015-12-241-1/+1
| | | | | | | | | | | | | | | | | | If non-Go code calls sigaltstack before a signal is received, use sigaltstack to determine the current signal stack and set the gsignal stack to use it. This makes the Go runtime more robust in the face of non-Go code. We still can't handle a disabled signal stack or a signal triggered with SA_ONSTACK clear, but we now give clear errors for those cases. Fixes #7227. Update #9896. Change-Id: Icb1607e01fd6461019b6d77d940e59b3aed4d258 Reviewed-on: https://go-review.googlesource.com/18102 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
* runtime: for c-archive/c-shared, don't install unnecessary signal handlersIan Lance Taylor2015-12-181-2/+9
| | | | | | | | | | | | | | | | | Only install signal handlers for synchronous signals that become run-time panics. Set the SA_ONSTACK flag for other signal handlers as needed. Fixes #13028. Update #12465. Update #13034. Update #13042. Change-Id: I28375e70641f60630e10f3c86e24b6e4f8a35cc9 Reviewed-on: https://go-review.googlesource.com/17903 Reviewed-by: Russ Cox <rsc@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
* runtime: drop sigfwd from signal forwarding unsupported platformsMikio Hara2015-10-021-0/+46
This change splits signal_unix.go into signal_unix.go and signal2_unix.go and removes the fake symbol sigfwd from signal forwarding unsupported platforms for clarification purpose. Change-Id: I205eab5cf1930fda8a68659b35cfa9f3a0e67ca6 Reviewed-on: https://go-review.googlesource.com/12062 Reviewed-by: Ian Lance Taylor <iant@golang.org>
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